﻿// ***********************************************************************
// Assembly         : DonNicky.Common.NET4
// Author           : donnicky
// Created          : 11-26-2012
//
// Last Modified By : donnicky
// Last Modified On : 11-26-2012
// ***********************************************************************
using System;
using System.Globalization;
using System.Windows;
using System.Windows.Data;

namespace DonNicky.Common.Converters
{
    /// <summary>
    /// Converts boolean to visibility
    /// </summary>
    public class BoolToVisibilityConverter : IValueConverter
    {
        /// <summary>
        /// Converts a boolean value to visibility.
        /// </summary>
        /// <param name="value">The boolean value produced by the binding source.</param>
        /// <param name="targetType">The type of the binding target property.</param>
        /// <param name="parameter">The converter parameter to use.</param>
        /// <param name="culture">The culture to use in the converter.</param>
#if NET4
        /// <returns>A converted value: Visibility.Visible if input is true, otherwise Visibility.Hidden.</returns>
#elif SL5
        /// <returns>A converted value: Visibility.Visible if input is true, otherwise Visibility.Collapsed.</returns>
#endif
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return (bool) value
                       ? Visibility.Visible
                       :
#if NET4
                        Visibility.Hidden;
#elif SL5
                        Visibility.Collapsed;
#endif
        }

        /// <summary>
        /// Converts visibility to boolean value.
        /// </summary>
        /// <param name="value">The Visibility value that is produced by the binding target.</param>
        /// <param name="targetType">The type to convert to.</param>
        /// <param name="parameter">The converter parameter to use.</param>
        /// <param name="culture">The culture to use in the converter.</param>
        /// <returns>A converted value: true if Visibility.Visible, otherwise false.</returns>
        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return (Visibility)value == Visibility.Visible;
        }
    }
}
